MESON Chess Problem Database

Problem Display
PID: 44646 (1N6/8/3pp3/Q1pk4/8/2P2P2/1K2P3/5B2 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Norwich Mercury, 1889

1N6/8/3pp3/Q1pk4/8/2P2P2/1K2P3/5B2

#2

7 + 4

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.e4#
  • Tries
    • 1.Qc7?
      • 1...Kc4
        • 2.e4#
      • 1...e5
        • 2.Qf7#
      • 1...c4
        • 2.Qa5#
      • 1...Ke5!
    • 1.Qa2+?
      • 1...c4
        • 2.Qa5#
      • 1...Ke5!
    • 1.Qa7?
      • 1...Kc4
        • 2.e4#
      • 1...e5
        • 2.Qf7#
      • 1...c4
        • 2.Qd4#
        • 2.Qa5#
      • 1...Ke5!
    • 1.Qa8+?
      • 1...Kc4
        • 2.e3#
        • 2.e4#
      • 1...Ke5!
  • Keys
    • 1.Qd8!
      • 1...Kc4
        • 2.e4#
      • 1...Ke5
        • 2.Qg5#
      • 1...e5
        • 2.Qg8#
      • 1...c4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(a),S_FLIGHT::B(A)+P(C)
  • Tries
    • Try
      • Q(F);N_PINP(a)
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::B(A)+P(C)
        • P(d);OGATEB,SBLOCK::QAB(F)
        • P(a);OGATEB,SBLOCK::QAR(F)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(F);CHECK,N_PINP(a)
      • Vars
        • P(a);OGATEB,P_SPINP(a),SBLOCK::QAR(F)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(F);N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::B(A)+P(C)
        • P(d);OGATEB,SBLOCK::QAB(F)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(F);CHECK,N_PINP(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(F);N_PINP(a),P_PINP(c)
    • Vars
      • K(b);N_SPINP(c),S_FLIGHT::B(A)+P(C)
      • K(b);N_SPINP(c),P-FLIGHT::QAR2(F)
      • P(d);OGATEB,SBLOCK::QAB(F)
      • P(a);OGATEB,SBLOCK::QAR(F)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).